Question

question 19
5 points
the claim is that the mean number of soft drinks consumed daily by statistics professors is three. you have no idea but want to do
a hypothesis test to determine if the mean is different. the alternate hypothesis for this study would be:
a ( h_1:mu
eq3 )
b ( h_1:mu < 3 )
c ( h_1:mu > 3 )

Explanation:

The null hypothesis \(H_0\) is the claim being tested. Here, \(H_0:\mu = 3\). The alternate hypothesis \(H_1\) is what we are trying to find evidence for. Since we want to determine if the mean is different (not equal) to 3, we use the not - equal sign in the alternate hypothesis. Options B (\(H_1:\mu<3\)) and C (\(H_1:\mu > 3\)) are one - sided (directional) hypotheses, but the problem asks for a test to see if the mean is different (a two - sided test).

Answer:

A. \(H_1:\mu
eq3\)